WO2012053759A9 - Portable tester for a servo system operating a hydraulic actuator for a steam turbine valve - Google Patents

Portable tester for a servo system operating a hydraulic actuator for a steam turbine valve Download PDF

Info

Publication number
WO2012053759A9
WO2012053759A9 PCT/KR2011/007478 KR2011007478W WO2012053759A9 WO 2012053759 A9 WO2012053759 A9 WO 2012053759A9 KR 2011007478 W KR2011007478 W KR 2011007478W WO 2012053759 A9 WO2012053759 A9 WO 2012053759A9
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
test
tester
hydraulic actuator
valve
Prior art date
Application number
PCT/KR2011/007478
Other languages
French (fr)
Korean (ko)
Other versions
WO2012053759A2 (en
WO2012053759A3 (en
Inventor
윤계천
Original Assignee
Youn Kye Cheon
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Youn Kye Cheon filed Critical Youn Kye Cheon
Priority to JP2013534799A priority Critical patent/JP2014500423A/en
Publication of WO2012053759A2 publication Critical patent/WO2012053759A2/en
Publication of WO2012053759A3 publication Critical patent/WO2012053759A3/en
Publication of WO2012053759A9 publication Critical patent/WO2012053759A9/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/003—Machine valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/005—Fault detection or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines

Definitions

  • the present invention relates to a tester for testing hydraulic systems (hydraulic actuators, dump valves, hydraulic servo valves and shut-off valves) of nuclear and thermal power plants, and more specifically, to control the opening degree of a valve for a steam turbine.
  • a test device for testing valves including a hydraulic actuator (cylinder) installed for opening and closing and a hydraulic servovalve for driving the same, wherein the turbine hydraulic system is inspected due to the interruption of the hydraulic supply during a plant overhaul.
  • the present invention relates to a mobile tester for a hydraulic actuator servo system of a turbine steam valve for pre-failure diagnosis and performance inspection before disconnecting the hydraulic actuator from the turbine hydraulic system.
  • a nuclear power plant is composed of a steam generator (1) centered on a nuclear reactor and a turbine (2), a generator system (3), and a cooling system (4) for driving a generator by receiving steam.
  • the amount of power generated is controlled by the operation of the steam valve 5 which controls the amount of steam supplied to the turbine 2.
  • it is driven by the hydraulic actuator system 10 of the turbine steam side to drive the steam valve 5 to supply steam to the turbine (2) and shut off the steam during the trip of the turbine (2).
  • the hydraulic actuator system 10 of the turbine steam valve includes the hydraulic signal line 12 of the EMERGENCY TRIP SYSTEM 17 and the hydraulic signal line of the OVER SPEED TRIP SYSTEM 16. 13) is connected to the hydraulic actuator system 10 of the turbine steam side, and these hydraulic signals are used as the hydraulic supply and shutoff signals of the main hydraulic supply line 15 of the hydraulic actuator.
  • the signal of the hydraulic signal line 12 of the emergency stop system 17 and the signal of the hydraulic signal line 13 of the overspeed prevention system 16 are emergency stop solenoid valves attached to the hydraulic actuator 10 of the turbine steam valve. It acts as a hydraulic signal to the main oil supply shutoff valve 11 of the quick oil supply apparatus 21 inside the hydraulic actuator 20, and the hydraulic actuator system 10 of a turbine steam valve via 19. This signal causes the supply of the main hydraulic supply line 15 to the servo valve 22 for driving the hydraulic actuator 20 so as to support the rapid oil supply device 21 and prevent the hydraulic oil in the hydraulic actuator 20 from being rapidly drained.
  • the emergency stop valve 18 is operated by the operation of the overspeed prevention system 16 to operate the hydraulic actuator 20 of the turbine steam valve.
  • the hydraulic actuator 20 is retracted to shut off the steam supply to the turbine, the drive servo valve 22 and the main hydraulic supply shutoff valve ( 11) is operated to shut off the hydraulic supply of the main hydraulic supply line 15 supplied to the driving servo valve 22.
  • the hydraulic actuator of the turbine steam valve plays a very important role in the power plant power generation system, thereby taking charge of the safety of the entire system.
  • a turbine 2 (especially a steam turbine) typically has a plurality of steam valves 5, which are devices which play a very important role in power generation facilities which function to supply and block steam or bypass the turbine. to be.
  • a hydraulic supply device and a test device using the same are used to inspect and test valves of a hydraulic actuator system of a steam turbine.
  • Korean Patent Registration No. 555344 Invention: Hydraulic Valve Performance Test Device
  • Method are disclosed.
  • the installation area is largely required as it is installed as a fixed facility inside the power plant, and there is a problem of inefficiency in terms of required cost.
  • the conventional test apparatus has a problem in that it is necessary to remove the corresponding parts from the power generation facility for inspection due to the hydraulic supply interruption of the hydraulic system during the inspection, and the separated parts must be moved to a specific place where the test apparatus is located. Increasing time and cost had inefficient problems.
  • turbine steam valve hydraulic system is used for a long time without any downtime unlike general industrial machinery, it is a very reliable facility.It is necessary to check individual steam valve hydraulic system for repair and performance to check whether it is continuously used during maintenance. do. Therefore, there is a need for a mobile tester that can be miniaturized for pre-failure diagnosis and performance inspection before separating the hydraulic actuator from the turbine hydraulic system and can secure mobility for easy access to the test object.
  • the present invention was devised to solve the above problems, in the state in which the hydraulic generator (hydraulic system) of the hydraulic actuator, which is a core device of the power generation equipment, is stopped, pre-failure diagnosis and performance inspection before separating the hydraulic actuator from the turbine hydraulic system.
  • the purpose of the present invention is to provide a portable tester for a hydraulic system servo system of a turbine steam valve which can determine the maintenance of the hydraulic actuator by using a mobile hydraulic generator for the purpose of improving the reliability of the hydraulic actuator and ensuring the quality of maintenance after maintenance. .
  • a mobile tester for a hydraulic actuator servo system of the turbine steam valve for determining the quality of the hydraulic actuator and valves installed in the turbine power generation facility, the tester main body;
  • a hydraulic pump for supplying test oil to the valves and hydraulic generating means having a hydraulic hose reel connected to the hydraulic pump to supply hydraulic pressure to the valves and the length of which is adjustable;
  • Moving means installed at a lower portion of the tester main body to freely move the tester main body;
  • a test apparatus driving panel installed in the tester main body and provided with an operation switch for driving a tester;
  • a test physical quantity display panel disposed in proximity to the test apparatus driving panel and displaying a test physical quantity;
  • a control instrumentation box electrically connected to the test device driving panel and the test physical quantity display panel to data and display information of each test object, and providing a mobile tester for the hydraulic actuator servo system of the turbine steam valve.
  • It is installed on the top of the tester body and may further comprise a simulation servo cylinder for the simulation of the hydraulic actuator of the turbine steam side.
  • the simulated servo cylinder can be driven in a single acting cylinder manner.
  • the table may be installed to be foldable from the side of the main body of the tester, and may further include a table installed through a cylinder supported on one side of the main body of the tester. have.
  • the test physical quantity display panel may include a main flow rate indicator of the test oil, a servovalve leakage flow rate indicator, and a test pressure indicator, and these indicators may be illustrated by a driving circuit and displayed on the front of the panel.
  • the tester main body may be provided with a cover for protecting the test physical quantity display panel and preventing scattering of the test oil, and a display panel for displaying the device circuit inside the tester.
  • the display panel may include a display panel made of a transparent material on which a device circuit is printed and an LED module installed inside the display panel to irradiate light to the display panel under control of a PCB.
  • the main body of the tester is provided with a main power connection for controlling the on / off, the main power connection is provided with a plurality of power supply, the exposed surface of the power supply is provided with a protective cover for preventing the reverse rotation of the motor and electric shock of the operator Can be.
  • the present invention even when the hydraulic system of the hydraulic actuator is stopped during regular maintenance or inspection of the power plant, a test and inspection is possible even when the hydraulic actuator of the turbine steam valve is attached to the power generation system through a mobile tester and a valve for driving the hydraulic actuator. Tests and checks on the flow rate (servo valves, shut-off valves, dump valves, etc.) are available. Accordingly, it is possible to remedy the inefficient conventional problems caused by separating the valves from the facility for inspection, which can shorten the maintenance time and reduce unnecessary costs, and precise testing of the hydraulic actuator of the turbine steam valve. After the performance check and maintenance, the maintenance quality can be improved to improve the reliability of maintenance and the operation efficiency of the power plant.
  • FIG. 1 is a system diagram of a conventional nuclear power plant
  • FIG. 2 is a hydraulic system configuration diagram showing a hydraulic system applied to a conventional nuclear power generation system
  • Figure 3a is a block diagram showing a front view of a mobile tester for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention
  • Figure 3b is a block diagram showing a side view of a mobile tester for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention
  • 3C is a block diagram showing a plan view of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention
  • 3D is an internal configuration diagram showing an interior of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention
  • FIG. 4 is a block diagram showing the configuration of a single-piece testing device on the upper part of a main body of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention
  • FIG. 5 is a configuration diagram showing a test physical quantity display panel of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention
  • FIG. 6 is a block diagram showing a tester operation operation panel of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention
  • FIG. 7 is a configuration diagram showing the configuration of a hydraulic actuator simulation servo cylinder for the hydraulic actuator simulation test of the mobile tester for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention
  • FIG. 8 is a control block diagram of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention
  • FIG. 9 is a configuration diagram showing the configuration of a hydraulic actuator according to an embodiment of the present invention.
  • 10a and 10b is an exemplary view for explaining the operating state of the hydraulic actuator according to an embodiment of the present invention
  • 11a and 11b is an exemplary view showing the hydraulic actuator internal cross-sectional configuration and the cross section of the valve used and the operating state of the valve according to an embodiment of the present invention
  • 12A and 12B are exemplary views showing a hydraulic actuator internal cross-sectional configuration according to an embodiment of the present invention and a hydraulic circuit in a test state using the mobile test apparatus of the present invention;
  • Figure 13a is an exemplary view showing a hydraulic circuit for the hydraulic actuator internal leakage test using the hydraulic actuator internal cross-sectional configuration and the mobile test device according to an embodiment of the present invention
  • FIG. 13B is an exemplary view showing a hydraulic circuit configuration of a hydraulic test apparatus according to an embodiment of the present invention.
  • FIG. 14 is a state diagram showing the internal leakage test of the shutoff valve according to an embodiment of the present invention.
  • FIG. 15 is a front view of (a) and a side view of (b) illustrating a safety device of a main power connection of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention.
  • 16 is a block diagram showing an LED lighting implementation of the system circuit diagram according to an embodiment of the present invention.
  • 3A to 3D are diagrams illustrating the configuration of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention.
  • the mobile tester of the present invention passes the hydraulic energy generated by the hydraulic pump 31 of the hydraulic generator 30 installed at the bottom through the hydraulic hose reels 33a and 33b through the directional solenoid valve 32 (not shown).
  • the test and inspection can be carried out while the hydraulic actuator of the turbine steam side is attached to the power generation facility.
  • the lower part of the tester main body 45 is provided with a movable wheel 34 which is easy to move
  • the upper part of the tester main body 45 is provided with a test device driving panel having an operation switch for driving the tester ( 35), a test physical quantity display panel 36 for displaying a test physical quantity, and a servo simulation cylinder 37 for a hydraulic actuator simulation test are provided at the upper end of the tester main body 45, respectively.
  • the right side of the tester main body 45 is provided with a folding table 38, the folding table 38 is supported by the shock absorber 39 (pneumatic cylinder).
  • the folding table 38 is provided with a control measuring box 40 for test progress and data measurement.
  • a portable computer 44 is mounted on the control measuring box 40 to test the portable computer 44.
  • the display unit 41 displays the test state and the test graph.
  • control measurement box 40 is configured as a hard case for easy movement after the test, and can be moved to an adjacent space (office) after the test, so that the test analysis and test data can be output.
  • the folding table 38 has the advantage that can be stored in the folded state on the side of the tester body 45 by pulling the handle 42 when the test is stored.
  • a cover 43 made of transparent reinforced acrylic material may be installed to prevent scattering of the test fluid during the test. Specifically, the cover 43 may be installed to be opened and closed to the upper end of the tester body 45.
  • Figure 4 is a block diagram showing the configuration of a single-piece test device unit on the upper part of the main body of the mobile tester for a hydraulic servo system according to an embodiment of the present invention.
  • the mobile tester of the present invention has the following configuration so that single test (valve single test) of the servo valve 22 (see FIG. 2), the main hydraulic supply shutoff valve 11, and the like can be performed.
  • the driving servo valve 22 is removed by attaching the driving servo valve 22 of the hydraulic actuator system 10 of the turbine steam side to the test block 50 of the driving servo valve 22 of the hydraulic actuator 20.
  • Function and performance may be represented by the portable computer 44.
  • the main hydraulic supply shutoff valve 11 may be attached to the test block 51 for testing to perform an internal leakage test.
  • FIG. 5 is a block diagram showing a test physical quantity display panel of a mobile tester for a hydraulic servo system according to an embodiment of the present invention.
  • the configuration of the test physical quantity display panel 36 includes a main flow rate indicator 60, a hydraulic actuator indicator (not shown), a leak flow rate indicator 61 of the servovalve, and test pressure indicators 62a, 62b, 62c, and 62d.
  • the lamp is installed on the front of the panel.
  • the test physical quantity display panel 36 displays the physical quantity of the tester on the panel so that the user can easily grasp the test physical quantity of each component.
  • FIG. 6 is a block diagram showing a tester operation operation panel of a mobile tester for a hydraulic servo system according to an embodiment of the present invention.
  • the test device drive panel 35 includes an emergency stop button 70, an automatic and manual changeover switch 71, a main pressure indicator 72, an operating temperature indicator 73, an operation button 74, and a warning. It consists of a display lamp 75. Accordingly, the operator can easily control the device through the test device drive panel 35.
  • FIG. 7 is a configuration diagram showing the configuration of a simulated servo cylinder for a simulation test of the hydraulic actuator of the mobile actuator for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention.
  • Simulated servo cylinder 37 of the hydraulic actuator simulated similarly to the hydraulic actuator of the power plant, driven in a single-acting cylinder manner and can be returned back by the force of the spring 80 in the operated state.
  • a servo valve may be mounted on the servo valve test block 50, and the test block 50 and the simulated servo cylinder 37 may be connected to the test device port 81 by piping to perform a simulation test.
  • the spring 80 loads the simulated servo cylinder in the simulated servo cylinder 37 in the same manner as the hydraulic actuator of the power plant system, and the position sensor 82 is mounted for the position control test of the servo valve.
  • FIG. 8 is a control block diagram of a hydraulic actuator and a mobile tester for a hydraulic servo system according to an embodiment of the present invention.
  • control measurement box 40 of the mobile tester In the control measurement box 40 of the mobile tester according to an embodiment of the present invention, various sensor amplifiers 96 and a portable computer 44 are installed on the upper side, and the portable computer 44 and the control PLC 95 are connected to Ethernet ( Information exchange can be achieved through Ethernet communication.
  • FIG. 9 is an exemplary view showing a configuration of a hydraulic actuator according to an embodiment of the present invention
  • Figure 10a is an exemplary view for explaining the internal cross section and the hydraulic circuit of the hydraulic actuator according to an embodiment of the present invention
  • Figure 10b is Exemplary diagrams showing an internal cross section of the hydraulic actuator and the emergency stop solenoid valve according to an embodiment of the present invention are excited.
  • the main hydraulic signal line 15 and the emergency stop hydraulic signal line 12 are connected to each other. Accordingly, when the emergency stop solenoid valve 19 is excited while the hydraulic pressure is supplied to the main hydraulic signal line 15 and the emergency stop hydraulic signal line 12, the main hydraulic supply shutoff valve 11 is opened, and the driving servo valve is opened.
  • the piston 90 of the hydraulic actuator 20 moves by being applied to 22 to operate the servovalve.
  • the opening degree of the turbine steam valve connected to the other end of the hydraulic actuator 20 is adjusted or blocked.
  • the amount of steam is adjusted or blocked.
  • Figure 11a is an exemplary view showing a cross-sectional view of the hydraulic actuator internal cross-sectional configuration and the valve used in accordance with an embodiment of the present invention
  • Figure 11b is a valve used in the turbine hydraulic actuator internal cross-sectional configuration according to an embodiment of the present invention
  • 12 is an exemplary view showing a test hydraulic circuit using an internal cross-sectional configuration of a hydraulic actuator and a mobile test apparatus of the present invention, in which a cross section of the display and an operation state of a valve are displayed.
  • 12B is an exemplary view showing a hydraulic circuit in a cross section configuration of the hydraulic actuator according to an embodiment of the present invention and a test state using the mobile test apparatus of the present invention.
  • the mobile tester of the present invention can be equipped with a test block 101 for the emergency stop solenoid valve and a test block 102 for the shutoff valve between the hydraulic actuator and the valve, so that the emergency stop hydraulic signal line 12 and Shut off the main hydraulic signal line 15 and connect the other ends of the hydraulic hose reels 33a, 33b (FIG. 13B) with the test lines 104, 105 to operate the hydraulic actuator with the hydraulic actuator attached to the power plant system. You can test and check.
  • this signal hydraulic pressure opens the main hydraulic supply shutoff valve 11, and the test hydraulic pressure is transmitted to the driving servo valve 22 and tested.
  • the hydraulic actuator By driving the driving servo valve 22 in the control box of the apparatus, the hydraulic actuator can be checked and tested with the hydraulic actuator attached to the power generation system via the hydraulic pressure transmitted from the test apparatus.
  • the measured test data may be automatically stored in the portable computer 44.
  • the emergency stop solenoid valve 19 is excited to form a pressure in the quick exhaust device chamber 106 of the actuator, and then the shutoff valve 103.
  • the internal leakage of the rapid drainage device 21 can be tested by the amount of pressure drop of the pressure gauge 107 after a predetermined time elapses.
  • Figure 13a is an exemplary view showing a hydraulic circuit for the hydraulic actuator internal cross-sectional configuration and the hydraulic actuator internal leakage test using a mobile test device according to an embodiment of the present invention
  • Figure 13b is a hydraulic test according to an embodiment of the present invention Exemplary diagram showing the hydraulic circuit configuration of the device
  • Figure 14 is a state diagram showing the internal leakage test of the shut-off valve according to an embodiment of the present invention.
  • the internal leakage test block 111 of the hydraulic actuator is attached to the attachment surface of the servo valve 22, and the test hydraulic signal line 112 is connected to the test apparatus.
  • the flow rate of the leak flowmeter 110 is read after stopping at a certain point. This leakage flow rate can be automatically stored in the test rig portable computer 44.
  • shut-off valves (121, 122) are cut off, and after a certain period of time, it is determined whether the leakage is measured by the pressure drop measured at the pressure measuring ports (120, 121), and the measurement data at this time May be automatically stored on the computer 44.
  • FIG. 15 is a front view of (a) and a side view of (b) illustrating a safety device of a main power connection of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention, and FIG. A schematic diagram showing an LED lighting implementation of a system circuit schematic diagram according to an embodiment is shown.
  • the mobile tester of the present invention may include a main power connection part 200 for turning on / off the power of the apparatus in the tester main body 45.
  • the tester main body 45 is provided with a closing plate 205
  • the main power switch 202 is provided at the top
  • the first power source portion 200a and the second power source portion 200b are formed, respectively.
  • the first power supply unit 200a and the second power supply unit 200b are electrically connected to each other.
  • a protective cover (not given a drawing number) may be mounted on the first power supply 200a and the second power supply 200b to prevent an electric shock accident due to inadvertence, and the operator may contact the first power supply 200a and the main power supply 1. If the direction of rotation of the motor is reversed after connecting the electric plug, connect the electric plug to the second power supply 200b, the main power supply 2, cut off the electric breaker of the power supply, and then connect the electric cable connection terminal (3-phase, RST). You can change the direction of rotation of the motor by simply replacing the electric plug without the hassle of changing.
  • a display panel for displaying the device circuits P1 and P2 inside the tester may be installed in the cover 43 (see FIG. 3B) of the mobile test apparatus of the present invention.
  • the display panel is installed in the display panel 300 of the transparent material on which the device circuits P1 and P2 are printed and is installed inside the display panel 300 to irradiate light to the display panel 300 under the control of the PCB 500.
  • LED module 350 may be configured.
  • the visibility of the display panel can be improved so that an operator can easily check the circuit system of the tester.

Abstract

The present invention relates to a tester that includes: a hydraulic actuator (cylinder) for adjusting the degree to which a steam turbine valve opens, or for opening/closing the steam turbine valve; and valve devices including a hydraulic servo valve for operating the hydraulic actuator. Particularly, disclosed is a portable tester for a servo system operating a hydraulic actuator for a steam turbine valve, which detects a defect in the hydraulic actuator or evaluates the performance thereof before the hydraulic actuator is removed from a hydraulic system of a turbine, thereby enabling the overhaul and operation of the hydraulic system of a turbine without stopping the hydraulic system and the hydraulic supply during the overhaul of a power plant. According to the present invention, the portable tester for a servo system operating a hydraulic actuator for a steam turbine valve of a power plant using a turbine detects a defect in the hydraulic actuator and valves.

Description

터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기Portable actuator for hydraulic actuator servo system of turbine steam valve
본 발명은 원자력 및 화력 발전소의 유압 계통(유압 작동기, 덤프밸브, 유압 서보 밸브 및 차단 밸브(Shut- Off Valve)의 시험을 위한 시험기에 관한 것으로서, 더욱 상세하게는 증기 터빈용 밸브의 개도 조절이나 개폐를 위해 설치되는 유압작동기(실린더) 및 이를 구동하기 위한 유압 서보 밸브를 포함한 밸브류의 시험을 위한 시험 장치로서, 발전소 점검공사(Overhaul) 중에 유압 공급이 중단된 상태로 인해 터빈 유압 계통의 점검이나 작동이 불가한 것을 개선한 터빈 유압계통에서의 유압작동기 분리 전 사전고장진단 및 성능검사를 위한 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기에 관한 것이다.The present invention relates to a tester for testing hydraulic systems (hydraulic actuators, dump valves, hydraulic servo valves and shut-off valves) of nuclear and thermal power plants, and more specifically, to control the opening degree of a valve for a steam turbine. A test device for testing valves including a hydraulic actuator (cylinder) installed for opening and closing and a hydraulic servovalve for driving the same, wherein the turbine hydraulic system is inspected due to the interruption of the hydraulic supply during a plant overhaul. The present invention relates to a mobile tester for a hydraulic actuator servo system of a turbine steam valve for pre-failure diagnosis and performance inspection before disconnecting the hydraulic actuator from the turbine hydraulic system.
일반적으로, 도 1과 같이 원자력 발전소는 크게 원자로를 중심으로 한 증기 발생기(1)와 증기를 공급받아 발전기를 구동시키는 터빈(2), 발전기 계통(3), 그리고 냉각 계통(4)으로 구성되고, 터빈(2)에 공급되는 증기의 공급량을 조절하는 스팀밸브(5)의 작동에 의해 발전량을 조절하게 된다. 여기서 스팀밸브(5)를 구동시키는 터빈 증기변의 유압 작동기 계통(10)에 의해 구동되어 터빈(2)에 증기를 공급 및 터빈(2)의 트립 시에 증기를 차단한다.In general, as shown in FIG. 1, a nuclear power plant is composed of a steam generator (1) centered on a nuclear reactor and a turbine (2), a generator system (3), and a cooling system (4) for driving a generator by receiving steam. The amount of power generated is controlled by the operation of the steam valve 5 which controls the amount of steam supplied to the turbine 2. Here it is driven by the hydraulic actuator system 10 of the turbine steam side to drive the steam valve 5 to supply steam to the turbine (2) and shut off the steam during the trip of the turbine (2).
터빈 증기변의 유압 작동기 계통(10)은 도 2와 같이, 비상 정지 계통(EMERGENCY TRIP SYSTEM; 17)의 유압 신호 라인(12)과, 과속 방지 계통(OVER SPEED TRIP SYSTEM ; 16)의 유압 신호 라인(13)이 터빈 증기변의 유압 작동기 계통(10)에 연결되고, 이들 유압 신호는 유압 작동기의 주 유압 공급 라인(15)의 유압 공급 및 차단 신호로 사용된다. As shown in FIG. 2, the hydraulic actuator system 10 of the turbine steam valve includes the hydraulic signal line 12 of the EMERGENCY TRIP SYSTEM 17 and the hydraulic signal line of the OVER SPEED TRIP SYSTEM 16. 13) is connected to the hydraulic actuator system 10 of the turbine steam side, and these hydraulic signals are used as the hydraulic supply and shutoff signals of the main hydraulic supply line 15 of the hydraulic actuator.
한편 발전 터빈 계통에 트립이 발생 될 경우, 신호 압력 공급(유압)이 차단되고, 터빈 증기변의 유압 작동기(10)의 주 유압 공급 라인(15)이 차단되어 터빈 증기변의 유압 작동기 계통(10)의 작동이 정지됨으로써 터빈으로 공급되는 증기를 차단하여 터빈 계통의 안전을 꾀한다. On the other hand, when a trip occurs in the power generation turbine system, the signal pressure supply (hydraulic) is cut off, and the main hydraulic supply line 15 of the hydraulic actuator 10 on the turbine steam side is cut off, so that the hydraulic actuator system 10 of the turbine steam side is shut off. By stopping operation, the steam supply to the turbine is shut off to ensure the safety of the turbine system.
이와 같이 비상 정지 계통(17)의 유압 신호 라인(12)의 신호와, 과속 방지 계통(16)의 유압 신호 라인(13)의 신호는 터빈 증기변의 유압 작동기(10)에 부착된 비상정지 솔레노이드 밸브(19)를 통하여 유압 작동기(20) 내부의 급속 배유 장치(21), 및 터빈 증기변의 유압 작동기 계통(10)의 주 유압 공급 차단 밸브(11)에 대한 유압 신호로 작용한다. 이 신호는 유압 작동기(20)의 구동용 서보 밸브(22)에 주 유압 공급라인(15)의 공급이 이루어지게 함으로써 급속 배유 장치(21)를 지지하고 유압 작동기(20) 내의 유압유가 급속 배유 되지 않게 한다. Thus, the signal of the hydraulic signal line 12 of the emergency stop system 17 and the signal of the hydraulic signal line 13 of the overspeed prevention system 16 are emergency stop solenoid valves attached to the hydraulic actuator 10 of the turbine steam valve. It acts as a hydraulic signal to the main oil supply shutoff valve 11 of the quick oil supply apparatus 21 inside the hydraulic actuator 20, and the hydraulic actuator system 10 of a turbine steam valve via 19. This signal causes the supply of the main hydraulic supply line 15 to the servo valve 22 for driving the hydraulic actuator 20 so as to support the rapid oil supply device 21 and prevent the hydraulic oil in the hydraulic actuator 20 from being rapidly drained. Do not
한편, 터빈 계통의 다양한 이상에 의한 전기 신호나, 터빈의 회전 속도가 규정 속도를 초과할 경우 과속 방지 계통(16)의 작동에 의해서 비상 정지 밸브(18)를 작동시켜 터빈 증기변의 유압 작동기(20)로 공급되는 유압 신호를 차단하여 유압 작동기(20) 내의 유압을 급속 배유시켜 유압 작동기(20)가 후퇴됨으로써 터빈에 증기 공급을 차단하고, 구동용 서보 밸브(22)와 주 유압 공급 차단 밸브(11)가 작동되어 구동용 서보 밸브(22)로 공급되는 주 유압 공급라인(15)의 유압 공급도 차단하게 된다.On the other hand, when the electric signal due to various abnormalities of the turbine system or the rotational speed of the turbine exceeds the specified speed, the emergency stop valve 18 is operated by the operation of the overspeed prevention system 16 to operate the hydraulic actuator 20 of the turbine steam valve. By cutting off the hydraulic signal supplied to the hydraulic oil to quickly drain the hydraulic pressure in the hydraulic actuator 20, the hydraulic actuator 20 is retracted to shut off the steam supply to the turbine, the drive servo valve 22 and the main hydraulic supply shutoff valve ( 11) is operated to shut off the hydraulic supply of the main hydraulic supply line 15 supplied to the driving servo valve 22.
상기에서 기술한 바와 같이 터빈 증기변의 유압 작동기는 발전소 발전 계통에 매우 중요한 역할을 함으로서 계통 전체의 안전을 담당하게 된다.As described above, the hydraulic actuator of the turbine steam valve plays a very important role in the power plant power generation system, thereby taking charge of the safety of the entire system.
한편, 터빈(2; 특히 증기터빈)은 통상적으로 다수의 스팀 밸브(5)를 가지며, 상기 스팀 밸브는 터빈에 증기를 공급 및 차단하거나 바이패스하는 기능을 하는 발전 설비에서 매우 중요한 역할을 하는 장치이다. On the other hand, a turbine 2 (especially a steam turbine) typically has a plurality of steam valves 5, which are devices which play a very important role in power generation facilities which function to supply and block steam or bypass the turbine. to be.
이에 따라 종래에는 증기 터빈의 유압 작동기 시스템의 밸브류의 점검과 시험을 위한 유압 공급 장치와 이를 이용한 시험 장치가 이용되고 있는데, 일 예로 대한민국 특허등록 제555344호(발명의 명칭: 유압밸브 성능 시험 장치 및 방법)가 개시되어 있다. Accordingly, in the related art, a hydraulic supply device and a test device using the same are used to inspect and test valves of a hydraulic actuator system of a steam turbine. For example, Korean Patent Registration No. 555344 (Invention: Hydraulic Valve Performance Test Device) And method) are disclosed.
그런데, 종래의 시험 장치는 발전소 내부에 고정 시설로 설치됨에 따라 설치면적이 크게 요구되고 소요 비용면에서도 비효율적인 문제점이 있다. 또한 종래의 시험 장치는 점검시 유압 시스템의 유압 공급 중단으로 인해 점검을 위해서는 발전 설비에서 해당 부품을 반드시 분리해야 하는 번거로움과, 분리된 부품은 시험 장치가 있는 특정 장소로 옮겨야 하므로, 이에 소요되는 시간과 비용이 높아짐으로써 비효율적인 문제점이 있었다. However, according to the conventional test apparatus, the installation area is largely required as it is installed as a fixed facility inside the power plant, and there is a problem of inefficiency in terms of required cost. In addition, the conventional test apparatus has a problem in that it is necessary to remove the corresponding parts from the power generation facility for inspection due to the hydraulic supply interruption of the hydraulic system during the inspection, and the separated parts must be moved to a specific place where the test apparatus is located. Increasing time and cost had inefficient problems.
또한 터빈 증기 밸브 유압 시스템은 일반 산업 기계와 달리 정지 시간이 없이 매우 장시간 사용되므로 신뢰성이 매우 필요한 설비로서 정비 기간 중에 개별 증기변 유압 시스템을 점검하여 수리 여부 및 성능을 점검하여 계속 사용 여부를 판단해야만 한다. 따라서, 터빈 유압계통에서의 유압작동기 분리 전 사전고장진단 및 성능검사를 위해 소형화되고 시험대상물에 접근성이 용이하도록 이동성을 확보할 수 있는 이동형 시험기가 요구되고 있는 실정이다. In addition, since turbine steam valve hydraulic system is used for a long time without any downtime unlike general industrial machinery, it is a very reliable facility.It is necessary to check individual steam valve hydraulic system for repair and performance to check whether it is continuously used during maintenance. do. Therefore, there is a need for a mobile tester that can be miniaturized for pre-failure diagnosis and performance inspection before separating the hydraulic actuator from the turbine hydraulic system and can secure mobility for easy access to the test object.
본 발명은 위와 같은 문제점을 해소하기 위해 창안된 것으로서, 발전 설비의 핵심 장치인 유압 작동기의 유압 발생기(유압계통)가 정지된 상태에서, 터빈 유압계통에서의 유압작동기 분리 전 사전고장진단 및 성능검사를 위한 이동용 유압 발생 장치를 이용하여 유압 작동기의 정비 여부를 판단할 수 있어 유압 작동기의 신뢰성 향상과 정비 후 정비 품질 보증할 수 있는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기를 제공하는데 그 목적이 있다.The present invention was devised to solve the above problems, in the state in which the hydraulic generator (hydraulic system) of the hydraulic actuator, which is a core device of the power generation equipment, is stopped, pre-failure diagnosis and performance inspection before separating the hydraulic actuator from the turbine hydraulic system. The purpose of the present invention is to provide a portable tester for a hydraulic system servo system of a turbine steam valve which can determine the maintenance of the hydraulic actuator by using a mobile hydraulic generator for the purpose of improving the reliability of the hydraulic actuator and ensuring the quality of maintenance after maintenance. .
위와 같은 목적을 달성하기 위한 본 발명의 일실시 형태에 따르면, 터빈 발전시설에 설치된 유압작동기 및 밸브들의 양부를 판정하기 위한 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기로서, 시험기 본체; 상기 밸브들에 시험유를 공급하기 위한 유압펌프와 상기 유압펌프와 연결되어 상기 밸브들에 유압을 공급하고 길이조절이 가능한 유압 호스릴이 마련된 유압 발생 수단; 상기 시험기 본체의 하부에 설치되어 상기 시험기 본체의 이동을 자유롭게 하는 이동수단; 상기 시험기 본체에 설치되고 시험기 구동을 위한 조작 스위치가 구비된 시험 장치 구동 패널; 상기 시험 장치 구동 패널과 근접설치되고 시험 물리량을 표시하는 시험 물리량 표시 패널; 및 상기 시험 장치 구동 패널과 상기 시험 물리량 표시 패널과 전기적으로 연결되어 각 실험대상의 정보를 데이터화하고 이를 표시하는 제어 계측 박스를 포함하여 이루어진 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기를 제공한다. According to one embodiment of the present invention for achieving the above object, a mobile tester for a hydraulic actuator servo system of the turbine steam valve for determining the quality of the hydraulic actuator and valves installed in the turbine power generation facility, the tester main body; A hydraulic pump for supplying test oil to the valves and hydraulic generating means having a hydraulic hose reel connected to the hydraulic pump to supply hydraulic pressure to the valves and the length of which is adjustable; Moving means installed at a lower portion of the tester main body to freely move the tester main body; A test apparatus driving panel installed in the tester main body and provided with an operation switch for driving a tester; A test physical quantity display panel disposed in proximity to the test apparatus driving panel and displaying a test physical quantity; And a control instrumentation box electrically connected to the test device driving panel and the test physical quantity display panel to data and display information of each test object, and providing a mobile tester for the hydraulic actuator servo system of the turbine steam valve.
상기 시험기 본체의 상단에 설치되고 터빈 증기 변의 유압 작동기의 모의 시험을 위한 모의 서보 실린더를 더 포함하여 이루어질 수 있다. It is installed on the top of the tester body and may further comprise a simulation servo cylinder for the simulation of the hydraulic actuator of the turbine steam side.
상기 모의 서보 실린더는 단동 실린더 방식으로 구동될 수 있다. The simulated servo cylinder can be driven in a single acting cylinder manner.
상기 시험기 본체의 측면에서 접힘 가능하게 설치되고, 상기 시험기 본체의 일측에 지지되는 실린더를 통해 설치되는 테이블을 더 포함하고, 상기 테이블이 설치된 상태에서 상부에 상기 제어 계측 박스 및 휴대용 컴퓨터가 설치될 수 있다. The table may be installed to be foldable from the side of the main body of the tester, and may further include a table installed through a cylinder supported on one side of the main body of the tester. have.
상기 시험 물리량 표시 패널은, 상기 시험유의 주 유량 표시기, 서보 밸브 누설 유량 표시기, 및 시험 압력 표시기가 구비되고, 이들 표시기는 구동회로로 도식화되어 패널 전면에 표시될 수 있다. The test physical quantity display panel may include a main flow rate indicator of the test oil, a servovalve leakage flow rate indicator, and a test pressure indicator, and these indicators may be illustrated by a driving circuit and displayed on the front of the panel.
상기 시험기 본체에는 상기 시험 물리량 표시 패널을 보호하고 상기 시험유의 비산을 방지하기 위한 커버가 설치되고, 상기 커버의 내부에는 시험기 내부의 장치회로를 표시하기 위한 표시패널이 설치된 것일 수 있다. The tester main body may be provided with a cover for protecting the test physical quantity display panel and preventing scattering of the test oil, and a display panel for displaying the device circuit inside the tester.
상기 표시패널은, 장치회로가 인쇄된 투명재질의 표시판과 상기 표시판 내부에 설치되어 PCB의 제어에 의해 상기 표시판으로 빛을 조사하는 LED모듈을 포함하여 이루어질 수 있다. The display panel may include a display panel made of a transparent material on which a device circuit is printed and an LED module installed inside the display panel to irradiate light to the display panel under control of a PCB.
상기 시험기 본체에는 온/오프를 제어하는 주전원 연결부가 구비되고, 상기 주전원 연결부는 복수의 전원부를 구비하고 상기 전원부의 노출면에는 전동기의 역회전 방지 및 작업자의 감전예방을 위한 보호 커버가 구비된 것일 수 있다. The main body of the tester is provided with a main power connection for controlling the on / off, the main power connection is provided with a plurality of power supply, the exposed surface of the power supply is provided with a protective cover for preventing the reverse rotation of the motor and electric shock of the operator Can be.
본 발명에 따르면, 발전소 정기 보수나 점검시 유압 작동기의 유압 시스템이 정지된 상황에서도 이동형 시험기를 통해 터빈 증기변의 유압 작동기가 발전 계통에 부착된 상태에서도 시험 및 점검이 가능하고 유압 작동기를 구동하는 밸브류(서보 밸브, 차단 밸브, 덤프밸브 등)에 대한 시험 및 점검이 가능하다. 이에 따라, 점검을 위해 밸브류를 설비로부터 분리함으로써 발생 되었던 비효율적인 종래의 문제점을 개선할 수 있어 정비 시간을 단축할 수 있고 불필요한 비용을 절감할 수 있으며, 정밀한 시험으로 터빈 증기 밸브의 유압 작동기의 성능 점검 및 정비 후 정비 품질을 향상시켜 정비 신뢰도를 향상시키는 동시에 발전소의 가동 효율을 향상시키는 효과가 있다.According to the present invention, even when the hydraulic system of the hydraulic actuator is stopped during regular maintenance or inspection of the power plant, a test and inspection is possible even when the hydraulic actuator of the turbine steam valve is attached to the power generation system through a mobile tester and a valve for driving the hydraulic actuator. Tests and checks on the flow rate (servo valves, shut-off valves, dump valves, etc.) are available. Accordingly, it is possible to remedy the inefficient conventional problems caused by separating the valves from the facility for inspection, which can shorten the maintenance time and reduce unnecessary costs, and precise testing of the hydraulic actuator of the turbine steam valve. After the performance check and maintenance, the maintenance quality can be improved to improve the reliability of maintenance and the operation efficiency of the power plant.
도 1은 종래의 원자력 발전의 계통도,1 is a system diagram of a conventional nuclear power plant,
도 2는 종래의 원자력 발전의 계통에 적용된 유압 계통을 나타내는 유압계통구성도,2 is a hydraulic system configuration diagram showing a hydraulic system applied to a conventional nuclear power generation system,
도 3a는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 정면도를 나타내는 구성도,Figure 3a is a block diagram showing a front view of a mobile tester for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention,
도 3b는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 측면도를 나타내는 구성도,Figure 3b is a block diagram showing a side view of a mobile tester for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention,
도 3c는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 평면도를 나타내는 구성도,3C is a block diagram showing a plan view of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention;
도 3d는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 내부를 나타내는 내부 구성도,3D is an internal configuration diagram showing an interior of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention;
도 4는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 본체 상부의 단품 시험 장치부의 구성을 나타내는 구성도,4 is a block diagram showing the configuration of a single-piece testing device on the upper part of a main body of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention;
도 5는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 시험 물리량 표시 패널을 나타내는 구성도,5 is a configuration diagram showing a test physical quantity display panel of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention;
도 6은 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 시험기 운전 조작 패널을 나타내는 구성도,6 is a block diagram showing a tester operation operation panel of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention;
도 7은 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 유압 작동기 모의 시험을 위한 유압 작동기 모의 서보 실린더의 구성을 나타내는 구성도,7 is a configuration diagram showing the configuration of a hydraulic actuator simulation servo cylinder for the hydraulic actuator simulation test of the mobile tester for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention,
도 8은 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 제어 블럭도,8 is a control block diagram of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention;
도 9는 본 발명의 일 실시예에 따른 유압 작동기의 구성을 나타내는 구성도, 9 is a configuration diagram showing the configuration of a hydraulic actuator according to an embodiment of the present invention;
도 10a 및 도 10b는 본 발명의 일 실시예에 따른 유압 작동기의 작동상태를 설명하기 위한 예시도,10a and 10b is an exemplary view for explaining the operating state of the hydraulic actuator according to an embodiment of the present invention,
도 11a 및 도 11b는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면 구성과 사용되는 밸브의 단면을 표시와 밸브의 작동 상태를 표시한 예시도, 11a and 11b is an exemplary view showing the hydraulic actuator internal cross-sectional configuration and the cross section of the valve used and the operating state of the valve according to an embodiment of the present invention,
도 12a 및 도 12b는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면 구성과 본 발명의 이동식 시험 장치를 이용한 시험 상태의 유압 회로를 나타내는 예시도,12A and 12B are exemplary views showing a hydraulic actuator internal cross-sectional configuration according to an embodiment of the present invention and a hydraulic circuit in a test state using the mobile test apparatus of the present invention;
도 13a는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면 구성과 이동식 시험 장치를 이용한 유압 작동기 내부 누설 시험을 위한 유압 회로를 나타내는 예시도, Figure 13a is an exemplary view showing a hydraulic circuit for the hydraulic actuator internal leakage test using the hydraulic actuator internal cross-sectional configuration and the mobile test device according to an embodiment of the present invention,
도 13b는 본 발명의 일 실시예에 따른 유압 시험 장치의 유압 회로구성을 나타내는 예시도, 13B is an exemplary view showing a hydraulic circuit configuration of a hydraulic test apparatus according to an embodiment of the present invention;
도 14는 본 발명의 일 실시예에 따른 차단 밸브의 내부 누유 시험을 보여주는 상태도, 14 is a state diagram showing the internal leakage test of the shutoff valve according to an embodiment of the present invention,
도 15는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 주 전원 연결부의 안전장치를 나타내는 (a)의 정면도와 (b)의 측면도, 및15 is a front view of (a) and a side view of (b) illustrating a safety device of a main power connection of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention; and
도 16은 본 발명의 일 실시예에 따른 시스템 회로구성도의 LED 조명 구현을 보여주는 구성도를 나타낸다. 16 is a block diagram showing an LED lighting implementation of the system circuit diagram according to an embodiment of the present invention.
이하, 본 발명의 바람직한 실시예를 첨부된 예시도면에 의거하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 3a 내지 도 3d는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 구성을 나타내는 구성도이다.3A to 3D are diagrams illustrating the configuration of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention.
본 발명의 이동식 시험기는 하단에 설치된 유압 발생 장치(30)의 유압 펌프(31)에서 발생된 유압 에너지를 방향 솔레노이드 밸브(32)를 통하여 유압 호스릴(33a, 33b)을 거쳐 시험용 블록(미도시)을 이용하여 터빈 증기변의 유압 작동기(20)에 유압 에너지를 공급함으로써 정기 점검중 계통이 정지된 상태에서도 터빈 증기변의 유압 작동기가 발전 설비에 부착된 상태에서 시험 및 점검을 실시할 수 있다.The mobile tester of the present invention passes the hydraulic energy generated by the hydraulic pump 31 of the hydraulic generator 30 installed at the bottom through the hydraulic hose reels 33a and 33b through the directional solenoid valve 32 (not shown). By supplying the hydraulic energy to the hydraulic actuator 20 of the turbine steam side using), even when the system is stopped during the periodical inspection, the test and inspection can be carried out while the hydraulic actuator of the turbine steam side is attached to the power generation facility.
상기의 시험을 진행하기 위하여 시험기 본체(45)의 하부에는 이동이 용이한 이동휠(34)이 구비되며, 시험기 본체(45)의 상부에는 시험기 구동을 위한 조작 스위치가 부착된 시험 장치 구동 패널(35)과 시험 물리량을 표시하는 시험 물리량 표시 패널(36), 및 시험기 본체(45)의 상단에는 유압 작동기 모의 시험을 위한 서보 모의 실린더(37)가 각각 구비된다.In order to proceed with the above test, the lower part of the tester main body 45 is provided with a movable wheel 34 which is easy to move, and the upper part of the tester main body 45 is provided with a test device driving panel having an operation switch for driving the tester ( 35), a test physical quantity display panel 36 for displaying a test physical quantity, and a servo simulation cylinder 37 for a hydraulic actuator simulation test are provided at the upper end of the tester main body 45, respectively.
한편, 시험기 본체(45)의 우측에는 접이식 테이블(38)이 설치되는데, 이 접이식 테이블(38)은 쇼버(39; 공압 실린더)에 의해서 지지 된다. 이 접이식 테이블(38)에는 시험 진행과 데이터 계측을 위한 제어 계측 박스(40)가 설치되는데, 이 제어 계측 박스(40)의 상부에는 휴대용 컴퓨터(44)가 장착되어 이 휴대용 컴퓨터(44)의 시험 표시부(41)를 통해 시험 상태와 시험 그래프를 표시한다. On the other hand, the right side of the tester main body 45 is provided with a folding table 38, the folding table 38 is supported by the shock absorber 39 (pneumatic cylinder). The folding table 38 is provided with a control measuring box 40 for test progress and data measurement. A portable computer 44 is mounted on the control measuring box 40 to test the portable computer 44. The display unit 41 displays the test state and the test graph.
또한 제어 계측 박스(40)는 시험 후 이동이 용이하도록 하드 케이스로 구성되며, 시험 후 인접공간(사무실) 등으로 이동가능하여 시험 분석 및 시험 테이터 출력할 수 있다. 아울러 접이식 테이블(38)은 시험 후 보관하는 경우 손잡이(42)를 당겨서 시험기 본체(45)의 측면에 접힌 상태로 보관이 가능한 장점이 있다. 또한 시험 중 시험 유체의 비산을 방지하기 위하여 투명 강화 아크릴재질의 커버(43)가 설치될 수 있다. 구체적으로 커버(43)는 시험기 본체(45)의 상단부에 개폐가능하게 회동되게 설치될 수 있다. In addition, the control measurement box 40 is configured as a hard case for easy movement after the test, and can be moved to an adjacent space (office) after the test, so that the test analysis and test data can be output. In addition, the folding table 38 has the advantage that can be stored in the folded state on the side of the tester body 45 by pulling the handle 42 when the test is stored. In addition, a cover 43 made of transparent reinforced acrylic material may be installed to prevent scattering of the test fluid during the test. Specifically, the cover 43 may be installed to be opened and closed to the upper end of the tester body 45.
도 4는 본 발명의 일 실시예에 따른 유압 서보 시스템용 이동식 시험기의 본체 상부의 단품 시험 장치부의 구성을 나타내는 구성도이다.Figure 4 is a block diagram showing the configuration of a single-piece test device unit on the upper part of the main body of the mobile tester for a hydraulic servo system according to an embodiment of the present invention.
본 발명의 이동식 시험기는 서보 밸브(22; 도 2참조), 주 유압 공급 차단 밸브(11) 등의 단품 시험(밸브 단독 시험)을 할 수 있도록 다음과 같은 구성을 갖는다.The mobile tester of the present invention has the following configuration so that single test (valve single test) of the servo valve 22 (see FIG. 2), the main hydraulic supply shutoff valve 11, and the like can be performed.
즉, 터빈 증기변의 유압 작동기 계통(10)의 구동용 서보 밸브(22)를 분리하여 유압 작동기(20)의 구동용 서보 밸브(22)의 시험 블록(50)에 부착함으로써 구동용 서보 밸브(22)의 기능 및 성능을 휴대용 컴퓨터(44)로 표시할 수 있다. 한편 이와 같은 방식으로 주 유압 공급 차단 밸브(11)를 시험용 시험 블록(51)에 부착하여 내부 누설 시험을 실시할 수도 있다. That is, the driving servo valve 22 is removed by attaching the driving servo valve 22 of the hydraulic actuator system 10 of the turbine steam side to the test block 50 of the driving servo valve 22 of the hydraulic actuator 20. Function and performance may be represented by the portable computer 44. On the other hand, in this manner, the main hydraulic supply shutoff valve 11 may be attached to the test block 51 for testing to perform an internal leakage test.
도 5는 본 발명의 일 실시예에 따른 유압 서보 시스템용 이동식 시험기의 시험 물리량 표시 패널을 나타내는 구성도이다.5 is a block diagram showing a test physical quantity display panel of a mobile tester for a hydraulic servo system according to an embodiment of the present invention.
상기 시험 물리량 표시 패널(36)의 구성은 주 유량 표시기(60), 유압 작동기 표시기(도면번호 미부여), 서보 밸브의 누설 유량 표시기(61), 시험 압력 표시기(62a, 62b, 62c, 62d) 등이 패널 전면에 설치된다. 이와 같은 시험 물리량 표시 패널(36)은 시험기의 물리량을 패널에 표시함으로써 사용자가 쉽게 각 구성요소의 시험 물리량을 파악할 수 있도록 한다. The configuration of the test physical quantity display panel 36 includes a main flow rate indicator 60, a hydraulic actuator indicator (not shown), a leak flow rate indicator 61 of the servovalve, and test pressure indicators 62a, 62b, 62c, and 62d. The lamp is installed on the front of the panel. The test physical quantity display panel 36 displays the physical quantity of the tester on the panel so that the user can easily grasp the test physical quantity of each component.
도 6은 본 발명의 일 실시예에 따른 유압 서보 시스템용 이동식 시험기의 시험기 운전 조작 패널을 나타내는 구성도이다.6 is a block diagram showing a tester operation operation panel of a mobile tester for a hydraulic servo system according to an embodiment of the present invention.
도 6과 같이 시험 장치 구동 패널(35)은 비상 정지 버튼(70), 자동 및 수동 전환 스위치(71), 주 압력 표시기(72), 작동 온도 표시기(73), 조작 버튼(74), 및 경고 표시 램프(75)로 구성된다. 이에 따라 작업자가 시험 장치 구동 패널(35) 통해 쉽게 장치제어를 할 수 있다.As shown in FIG. 6, the test device drive panel 35 includes an emergency stop button 70, an automatic and manual changeover switch 71, a main pressure indicator 72, an operating temperature indicator 73, an operation button 74, and a warning. It consists of a display lamp 75. Accordingly, the operator can easily control the device through the test device drive panel 35.
도 7은 본 발명의 일 실시예에 따른 터빈 증기변의 유압 작동기 서보 시스템용 이동식 시험기의 유압 작동기의 모의 시험을 위한 모의 서보 실린더의 구성을 나타내는 구성도이다.7 is a configuration diagram showing the configuration of a simulated servo cylinder for a simulation test of the hydraulic actuator of the mobile actuator for the hydraulic actuator servo system of the turbine steam side according to an embodiment of the present invention.
본 발명의 일 실시예에 따른 유압 작동기의 모의 서보 실린더(37)로 발전소의 유압 작동기와 유사하게 모의하여 단동 실린더 방식으로 구동되며 작동된 상태에서 스프링(80)의 힘에 의해서 다시 복귀될 수 있다. 도 4를 참조하면 서보 밸브 시험 블록(50)에 서보 밸브를 장착하고 시험 블록(50)과 모의 서보 실린더(37)는 배관으로 시험 장치 포트(81)와 연결되어 모의시험이 진행될 수 있다. 한편 스프링(80)은 모의 서보 실린더(37)에 발전소 계통의 유압 작동기와 동일하게 모의 서보 실린더에 부하를 형성하며 위치 센서(82)는 서보 밸브의 위치 제어 시험을 위해 장착된다. Simulated servo cylinder 37 of the hydraulic actuator according to an embodiment of the present invention simulated similarly to the hydraulic actuator of the power plant, driven in a single-acting cylinder manner and can be returned back by the force of the spring 80 in the operated state. . Referring to FIG. 4, a servo valve may be mounted on the servo valve test block 50, and the test block 50 and the simulated servo cylinder 37 may be connected to the test device port 81 by piping to perform a simulation test. On the other hand, the spring 80 loads the simulated servo cylinder in the simulated servo cylinder 37 in the same manner as the hydraulic actuator of the power plant system, and the position sensor 82 is mounted for the position control test of the servo valve.
도 8은 본 발명의 일 실시예에 따른 유압 작동기 및 유압 서보 시스템용 이동식 시험기의 제어 블록도이다.8 is a control block diagram of a hydraulic actuator and a mobile tester for a hydraulic servo system according to an embodiment of the present invention.
본 발명의 일 실시 예에 따른 이동식 시험기의 제어 계측 박스(40)에는 각종 센서 증폭기(96)와 상단에 휴대용 컴퓨터(44)가 설치되고 이 휴대용 컴퓨터(44)와 제어용 PLC(95)는 이더넷(Ethernet) 통신을 통해 정보교환이 이루어질 수 있다. In the control measurement box 40 of the mobile tester according to an embodiment of the present invention, various sensor amplifiers 96 and a portable computer 44 are installed on the upper side, and the portable computer 44 and the control PLC 95 are connected to Ethernet ( Information exchange can be achieved through Ethernet communication.
도 9는 본 발명의 일 실시예에 따른 유압 작동기의 구성을 나타내는 예시도이고, 도 10a 는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면과 유압 회로를 설명하기 위한 예시도이며, 도 10b 는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면과 비상 정지 솔레노이드 밸브가 여자 된 상태를 나타내는 예시도이다.9 is an exemplary view showing a configuration of a hydraulic actuator according to an embodiment of the present invention, Figure 10a is an exemplary view for explaining the internal cross section and the hydraulic circuit of the hydraulic actuator according to an embodiment of the present invention, Figure 10b is Exemplary diagrams showing an internal cross section of the hydraulic actuator and the emergency stop solenoid valve according to an embodiment of the present invention are excited.
도 9 내지 도 10b와 같이 주 유압 신호 라인(15)과 비상 정지 유압 신호 라인(12)이 연결된 상태를 나타낸다. 이에 따라 주 유압 신호 라인(15)과 비상 정지 유압 신호 라인(12)에 유압이 공급된 상태에서 비상정지 솔레노이드 밸브(19)가 여자되면 주 유압 공급 차단 밸브(11)가 열리고, 구동용 서보 밸브(22)에 인가되어 서보 밸브를 작동함으로써 유압 작동기(20)의 피스톤(90)이 움직인다. 9 to 10b, the main hydraulic signal line 15 and the emergency stop hydraulic signal line 12 are connected to each other. Accordingly, when the emergency stop solenoid valve 19 is excited while the hydraulic pressure is supplied to the main hydraulic signal line 15 and the emergency stop hydraulic signal line 12, the main hydraulic supply shutoff valve 11 is opened, and the driving servo valve is opened. The piston 90 of the hydraulic actuator 20 moves by being applied to 22 to operate the servovalve.
이에 따라 유압 작동기(20)의 타단에 연결된 터빈 증기변의 개도 조절이나 차단이 이루어진다. 이와 같은 방식으로 증기량을 조절함으로써 발전량 및 주파수(일반적으로 60Hz)를 제어할 수 있다. Accordingly, the opening degree of the turbine steam valve connected to the other end of the hydraulic actuator 20 is adjusted or blocked. By adjusting the amount of steam in this way, it is possible to control the amount of generation and frequency (typically 60 Hz).
도 11a는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면 구성과 사용되는 밸브의 단면을 표시한 예시도이고, 도 11b는 본 발명의 일 실시예에 따른 터빈 유압 작동기 내부 단면 구성과 사용되는 밸브의 단면을 표시와 밸브의 작동 상태를 표시한 예시도이고, 도 12a는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면 구성과 본 발명의 이동식 시험 장치를 이용한 시험 유압 회로를 나타내는 예시도이며, 도 12b는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면 구성과 본 발명의 이동식 시험 장치를 이용한 시험 상태의 유압 회로를 나타내는 예시도이다.Figure 11a is an exemplary view showing a cross-sectional view of the hydraulic actuator internal cross-sectional configuration and the valve used in accordance with an embodiment of the present invention, Figure 11b is a valve used in the turbine hydraulic actuator internal cross-sectional configuration according to an embodiment of the present invention 12 is an exemplary view showing a test hydraulic circuit using an internal cross-sectional configuration of a hydraulic actuator and a mobile test apparatus of the present invention, in which a cross section of the display and an operation state of a valve are displayed. 12B is an exemplary view showing a hydraulic circuit in a cross section configuration of the hydraulic actuator according to an embodiment of the present invention and a test state using the mobile test apparatus of the present invention.
도면과 같이, 본 발명의 이동식 시험기는 비상정지 솔레노이드 밸브의 시험용 블록(101)과 차단 밸브용 시험 블록(102)을 유압 작동기와 밸브 사이에 장착할 수 있어, 비상 정지 유압 신호 라인(12)과 주 유압 신호 라인(15)을 차단하고, 유압 호스 릴(33a,33b; 도 13b)의 타단을 시험 라인(104, 105)과 연결하여 유압 작동기가 발전 설비 계통에 부착된 상태에서 유압 작동기의 작동 시험과 점검을 할 수 있다. As shown in the figure, the mobile tester of the present invention can be equipped with a test block 101 for the emergency stop solenoid valve and a test block 102 for the shutoff valve between the hydraulic actuator and the valve, so that the emergency stop hydraulic signal line 12 and Shut off the main hydraulic signal line 15 and connect the other ends of the hydraulic hose reels 33a, 33b (FIG. 13B) with the test lines 104, 105 to operate the hydraulic actuator with the hydraulic actuator attached to the power plant system. You can test and check.
또한 비상 정지 밸브(18)에 비상정지 솔레노이드 밸브(19)를 여자 시키는 경우, 이 신호 유압이 주 유압 공급 차단 밸브(11)를 개방시키고, 시험 유압이 구동용 서보 밸브(22)에 전달되고 시험 장치의 제어 박스에서 구동용 서보 밸브(22)를 구동함으로써, 시험 장치로부터 전달된 유압을 통해 유압 작동기가 발전 설비 계통에 부착된 상태에서 유압 작동기의 점검과 시험을 실시할 수 있다. 이때 계측된 시험 데이터는 휴대용 컴퓨터(44)에 자동으로 저장될 수 있다. In addition, when the emergency stop solenoid valve 19 is energized to the emergency stop valve 18, this signal hydraulic pressure opens the main hydraulic supply shutoff valve 11, and the test hydraulic pressure is transmitted to the driving servo valve 22 and tested. By driving the driving servo valve 22 in the control box of the apparatus, the hydraulic actuator can be checked and tested with the hydraulic actuator attached to the power generation system via the hydraulic pressure transmitted from the test apparatus. The measured test data may be automatically stored in the portable computer 44.
또한 유압 작동기 내부에 설치된 급속 배유 장치(21)의 내부 누설 시험을 실시하는 경우에는 비상정지 솔레노이드 밸브(19)를 여자하여 작동기 급속 배유 장치 챔버(106)에 압력을 형성한 후 차단 밸브(103)를 차단하고, 일정 시간 경과 후 압력계(107)의 압력 강하량으로 급속 배유 장치(21)의 내부 누설 량을 시험할 수 있다.In addition, in the case of performing an internal leakage test of the quick draining device 21 installed inside the hydraulic actuator, the emergency stop solenoid valve 19 is excited to form a pressure in the quick exhaust device chamber 106 of the actuator, and then the shutoff valve 103. The internal leakage of the rapid drainage device 21 can be tested by the amount of pressure drop of the pressure gauge 107 after a predetermined time elapses.
도 13a는 본 발명의 일 실시예에 따른 유압 작동기 내부 단면 구성과 이동식 시험 장치를 이용한 유압 작동기 내부 누설 시험을 위한 유압 회로를 나타내는 예시도이고, 도 13b는 본 발명의 일 실시예에 따른 유압 시험 장치의 유압 회로구성을 나타내는 예시도이며, 도 14는 본 발명의 일 실시예에 따른 차단 밸브의 내부 누유 시험을 보여주는 상태도이다. Figure 13a is an exemplary view showing a hydraulic circuit for the hydraulic actuator internal cross-sectional configuration and the hydraulic actuator internal leakage test using a mobile test device according to an embodiment of the present invention, Figure 13b is a hydraulic test according to an embodiment of the present invention Exemplary diagram showing the hydraulic circuit configuration of the device, Figure 14 is a state diagram showing the internal leakage test of the shut-off valve according to an embodiment of the present invention.
서보 밸브(22)를 시험 대상의 유압 작동기에서 분리 후 유압 작동기의 내부 누설 시험 블록(111)을 서보 밸브(22)의 부착면에 부착하고, 시험 유압 신호 라인(112)을 연결하여 시험 장치의 유압을 공급한 후 일정 지점에서 정지 후 누설 유량계(110)의 유량을 읽는다. 이 누설 유량은 시험장치 휴대용 컴퓨터(44)에 자동으로 저장될 수 있다.After disconnecting the servo valve 22 from the hydraulic actuator of the test object, the internal leakage test block 111 of the hydraulic actuator is attached to the attachment surface of the servo valve 22, and the test hydraulic signal line 112 is connected to the test apparatus. After the hydraulic pressure is supplied, the flow rate of the leak flowmeter 110 is read after stopping at a certain point. This leakage flow rate can be automatically stored in the test rig portable computer 44.
한편 시험 장치 시험 라인(104,105)과 연결 후 차단 밸브(121,122)를 차단하고 일정 시간이 경과 후 압력 측정 포트(120, 121)에서 측정된 압력 강하량으로 누설 여부를 판단하고, 이때의 측정 데이터는 휴대용 컴퓨터(44)에 자동으로 저장될 수 있다.On the other hand, after connecting to the test device test lines (104, 105), the shut-off valves (121, 122) are cut off, and after a certain period of time, it is determined whether the leakage is measured by the pressure drop measured at the pressure measuring ports (120, 121), and the measurement data at this time May be automatically stored on the computer 44.
도 15는 본 발명의 일 실시예에 따른 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기의 주 전원 연결부의 안전장치를 나타내는 (a)의 정면도와 (b)의 측면도이고, 도 16은 본 발명의 일 실시예에 따른 시스템 회로구성도의 LED조명 구현을 보여주는 구성도를 나타낸다. FIG. 15 is a front view of (a) and a side view of (b) illustrating a safety device of a main power connection of a mobile tester for a hydraulic actuator servo system of a turbine steam valve according to an embodiment of the present invention, and FIG. A schematic diagram showing an LED lighting implementation of a system circuit schematic diagram according to an embodiment is shown.
도 15와 같이 본 발명의 이동식 시험기에는 시험기 본체(45)에 장치의 전원의 온/오프를 위한 주전원 연결부(200)가 구비될 수 있다. 구체적으로 시험기 본체(45)에는 마감 플레이트(205)가 설치되고, 상부에는 주전원 스위치(202)가 구비되고, 제1전원부(200a)와 제2전원부(200b)가 각각 형성된다. 여기서 제1전원부(200a)와 제2전원부(200b)는 서로 전기적으로 연결된다. As shown in FIG. 15, the mobile tester of the present invention may include a main power connection part 200 for turning on / off the power of the apparatus in the tester main body 45. Specifically, the tester main body 45 is provided with a closing plate 205, the main power switch 202 is provided at the top, and the first power source portion 200a and the second power source portion 200b are formed, respectively. Here, the first power supply unit 200a and the second power supply unit 200b are electrically connected to each other.
한편 제1전원부(200a)와 제2전원부(200b)에는 보호 커버(도면번호 미부여)가 장착될 수 있어 부주의로 인한 감전사고를 예방할 수 있으며, 작업자가 제1전원부(200a, 주전원1)에 전기 플러그를 연결 후 전동기의 회전 방향이 역방향일 경우, 제2전원부(200b, 주전원2)에 전기 플러그를 연결함으로써, 전원 공급부의 전기 차단기를 차단한 후 전기 케이블 연결 단자(3상, R S T)를 바꾸는 번거로움이 없이 전기 플러그를 교체 연결만으로 전동기의 회전 방향을 바꿀 수가 있다. On the other hand, a protective cover (not given a drawing number) may be mounted on the first power supply 200a and the second power supply 200b to prevent an electric shock accident due to inadvertence, and the operator may contact the first power supply 200a and the main power supply 1. If the direction of rotation of the motor is reversed after connecting the electric plug, connect the electric plug to the second power supply 200b, the main power supply 2, cut off the electric breaker of the power supply, and then connect the electric cable connection terminal (3-phase, RST). You can change the direction of rotation of the motor by simply replacing the electric plug without the hassle of changing.
한편, 도 16과 같이 본 발명의 이동식 시험장치의 커버(43; 도 3b참조)의 내부에는 시험기 내부의 장치회로(P1,P2)를 표시하기 위한 표시패널이 설치될 수 있다. 구체적으로 표시패널은 장치회로(P1,P2)가 인쇄된 투명재질의 표시판(300)과 이 표시판(300)의 내부에 설치되어 PCB(500)의 제어에 의해 표시판(300)으로 빛을 조사하는 LED모듈(350)로 구성될 수 있다.Meanwhile, as shown in FIG. 16, a display panel for displaying the device circuits P1 and P2 inside the tester may be installed in the cover 43 (see FIG. 3B) of the mobile test apparatus of the present invention. Specifically, the display panel is installed in the display panel 300 of the transparent material on which the device circuits P1 and P2 are printed and is installed inside the display panel 300 to irradiate light to the display panel 300 under the control of the PCB 500. LED module 350 may be configured.
이상에서는 본 발명을 특정의 실시예에 대해서 도시하고 설명하였지만, 본 발명은 상술한 실시예에만 한정되는 것은 아니며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 이하의 청구범위에 기재된 본 발명의 기술적 사상의 요지를 벗어나지 않는 범위에서 얼마든지 다양하게 변경하여 실시할 수 있을 것이다. Although the present invention has been illustrated and described with respect to specific embodiments thereof, the present invention is not limited to the above-described embodiments, and a person skilled in the art to which the present invention pertains has the present invention described in the following claims. Various changes may be made without departing from the spirit of the technical idea of the invention.
이에 따라 작업자가 시험기의 회로계통을 쉽게 확인할 수 있도록 표시판의 시인성을 향상시킬 수 있다.Accordingly, the visibility of the display panel can be improved so that an operator can easily check the circuit system of the tester.

Claims (8)

  1. 터빈 발전시설에 설치되는 유압작동기 및 밸브들에 대한 양부를 판정하기 위한 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기로서,As a mobile tester for a servo steam side hydraulic actuator servo system for determining the validity of hydraulic actuators and valves installed in a turbine power plant,
    시험기 본체;Tester body;
    상기 밸브들에 시험유를 공급하기 위한 유압펌프와 상기 유압펌프와 연결되어 상기 밸브들에 유압을 공급하고 길이조절이 가능한 유압 호스릴이 마련된 유압 발생 수단;A hydraulic pump for supplying test oil to the valves and hydraulic generating means having a hydraulic hose reel connected to the hydraulic pump to supply hydraulic pressure to the valves and the length of which is adjustable;
    상기 시험기 본체의 하부에 설치되어 상기 시험기 본체의 이동을 자유롭게 하는 이동수단;Moving means installed at a lower portion of the tester main body to freely move the tester main body;
    상기 시험기 본체에 설치되고 시험기 구동을 위한 조작 스위치가 구비된 시험 장치 구동 패널; A test apparatus driving panel installed in the tester main body and provided with an operation switch for driving a tester;
    상기 시험 장치 구동 패널과 근접설치되고 시험 물리량을 표시하는 시험 물리량 표시 패널; 및A test physical quantity display panel disposed in proximity to the test apparatus driving panel and displaying a test physical quantity; And
    상기 시험 장치 구동 패널과 상기 시험 물리량 표시 패널과 전기적으로 연결되어 각 밸브의 시험정보를 데이터화하고 이를 표시하는 제어 계측 박스를 포함하여 이루어진 것을 특징으로 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.And a control instrumentation box electrically connected to the test device drive panel and the test physical quantity display panel to convert test information of each valve into data and to display the test information.
  2. 제1항에 있어서,The method of claim 1,
    상기 시험기 본체의 상단에 설치되고 터빈 증기 변의 유압 작동기의 모의 시험을 위한 모의 서보 실린더를 더 포함하여 이루어진 것을 특징으로 하는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.And a simulation servo cylinder installed at an upper end of the tester main body and configured to simulate a hydraulic actuator of the turbine steam valve.
  3. 제2항에 있어서,The method of claim 2,
    상기 모의 서보 실린더는 단동 실린더 방식으로 구동되는 것을 특징으로 하는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.The simulated servo cylinder is driven in a single-acting cylinder method, the mobile steam tester for a hydraulic actuator servo system of the turbine steam side.
  4. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 시험기 본체의 측면에서 접힘 가능하게 설치되고, 상기 시험기 본체의 일측에 지지되는 실린더를 통해 설치되는 테이블을 더 포함하고,Further provided to be folded on the side of the tester body, the table is installed through a cylinder supported on one side of the tester body,
    상기 테이블이 설치된 상태에서 상부에 상기 제어 계측 박스 및 휴대용 컴퓨터가 설치되는 것을 특징으로 하는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.And the control measuring box and a portable computer are installed on the upper portion of the table while the table is installed.
  5. 제1항에 있어서, The method of claim 1,
    상기 시험 물리량 표시 패널은,The test physical quantity display panel,
    상기 시험유의 주 유량 표시기, 서보 밸브 누설 유량 표시기, 및 시험 압력 표시기가 구비되고, 이들 표시기는 구동회로로 도식화되어 패널 전면에 표시되는 것을 특징으로 하는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.And a main flow rate indicator of the test oil, a servovalve leakage flow rate indicator, and a test pressure indicator, and these indicators are illustrated by a drive circuit and displayed on a front surface of the turbine steam side hydraulic actuator servo system.
  6. 제1항 또는 제5항에 있어서,The method according to claim 1 or 5,
    상기 시험기 본체에는 상기 시험 물리량 표시 패널을 보호하고 상기 시험유의 비산을 방지하기 위한 커버가 설치되고,The tester main body is provided with a cover for protecting the test physical quantity display panel and preventing scattering of the test oil.
    상기 커버의 내부에는 시험기 내부의 장치회로를 표시하기 위한 표시패널이 설치된 것을 특징으로 하는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.And a display panel for displaying a device circuit inside the tester.
  7. 제6항에 있어서,The method of claim 6,
    상기 표시패널은,The display panel,
    장치회로가 인쇄된 투명재질의 표시판과 상기 표시판 내부에 설치되어 PCB의 제어에 의해 상기 표시판으로 빛을 조사하는 LED모듈을 포함하여 이루어진 것을 특징으로 하는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.And a display module having a device circuit printed thereon and an LED module installed inside the display panel to irradiate light to the display panel under control of a PCB.
  8. 제1항에 있어서,The method of claim 1,
    상기 시험기 본체에는 온/오프를 제어하는 주전원 연결부가 구비되고,The tester main body is provided with a main power connection for controlling the on / off,
    상기 주전원 연결부는 복수의 전원부를 구비하고 상기 전원부의 노출면에는 전동기의 역회전 방지 및 작업자의 감전예방을 위한 보호 커버가 구비된 것을 특징으로 하는 터빈 증기 변의 유압 작동기 서보 시스템용 이동식 시험기.The main power supply connection portion is provided with a plurality of power supply portion and the exposed surface of the power supply is a mobile steam tester for the hydraulic actuator servo system of the turbine steam valve, characterized in that the protective cover for preventing the reverse rotation of the motor and the electric shock of the operator is provided.
PCT/KR2011/007478 2010-10-20 2011-10-10 Portable tester for a servo system operating a hydraulic actuator for a steam turbine valve WO2012053759A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013534799A JP2014500423A (en) 2010-10-20 2011-10-10 Mobile testing machine for servo system of hydraulic actuator of turbine steam valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0102388 2010-10-20
KR1020100102388A KR101053642B1 (en) 2010-10-20 2010-10-20 Portable tester for hydraulic actuator servo system of turbine stem valve

Publications (3)

Publication Number Publication Date
WO2012053759A2 WO2012053759A2 (en) 2012-04-26
WO2012053759A3 WO2012053759A3 (en) 2012-06-14
WO2012053759A9 true WO2012053759A9 (en) 2012-08-02

Family

ID=44932758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/007478 WO2012053759A2 (en) 2010-10-20 2011-10-10 Portable tester for a servo system operating a hydraulic actuator for a steam turbine valve

Country Status (3)

Country Link
JP (1) JP2014500423A (en)
KR (1) KR101053642B1 (en)
WO (1) WO2012053759A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101171297B1 (en) 2011-12-21 2012-08-06 서호덕 Portable test device of governor spring
KR101366841B1 (en) 2012-09-28 2014-02-25 서호덕 Orifice valve test device of steam turbine hydraulic cylinder
GR1008171B (en) * 2012-10-10 2014-04-14 Λαμπρος Διαμαντη Σαρμπανης Portable tester for the adjustment of mechanical governors and actuators
KR101395931B1 (en) 2013-06-28 2014-05-16 윤계천 Test block of oil leakage test for turbine valve actuator
CN105115704A (en) * 2014-11-19 2015-12-02 芜湖蓝宙电子科技有限公司 Experiment table for testing performances of hydraulic valve
CN104568425B (en) * 2015-02-10 2017-05-17 杭州电子科技大学 Performance test device for valve rod of adjusting valve of turbine
WO2018124420A1 (en) * 2016-12-29 2018-07-05 윤계천 Monitoring block for real-time integrity evaluation during operation of power plant hydraulic actuator
KR102157680B1 (en) * 2020-04-22 2020-09-18 윤계천 Actuator integrity diagnostic module with oil cleaning function
CN113820121B (en) * 2021-11-17 2022-02-22 常州艾肯智造科技有限公司 Combined type steam trap detection device with quick mounting structure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2544856B2 (en) * 1991-09-26 1996-10-16 東北電力株式会社 Safety valve operation test device
JPH05296883A (en) * 1992-04-17 1993-11-12 Nissei Eng Kk Testing equipment of operation of safety valve
JP2001165812A (en) * 1999-12-13 2001-06-22 Hitachi Ltd Safety valve test method and safety valve test apparatus
KR200225812Y1 (en) 2000-12-23 2001-06-01 한전기공주식회사 Tester of leakage
KR100555344B1 (en) * 2003-12-31 2006-02-24 한국수력원자력 주식회사 System and method for test hydraulic pressure valve
KR200377628Y1 (en) 2004-12-22 2005-03-14 한국수력원자력 주식회사 Valve performance tester
JP4735399B2 (en) 2006-04-28 2011-07-27 東芝三菱電機産業システム株式会社 Automatic valve abnormality test device for liquid transfer device
KR100894440B1 (en) 2009-02-05 2009-04-22 한일마이크로텍(주) Test device for valve

Also Published As

Publication number Publication date
KR101053642B1 (en) 2011-08-02
JP2014500423A (en) 2014-01-09
WO2012053759A2 (en) 2012-04-26
WO2012053759A3 (en) 2012-06-14

Similar Documents

Publication Publication Date Title
WO2012053759A9 (en) Portable tester for a servo system operating a hydraulic actuator for a steam turbine valve
CN201207013Y (en) Detecting machine for airtightness of oil tank
KR102062819B1 (en) System for diagnosting error of communication cable
CN111060761B (en) Test method based on liquid rocket engine test system
CN205027482U (en) Portable pressure measurement
CN108005131A (en) A kind of underground exterior-protected structure body deformation real-time monitoring system and its monitoring method
CN104089748B (en) A kind of air-brake coupling hose air pressure level pressure detects testing machine
CN102849193B (en) Ventilating pipe monitoring device and monitoring method thereof
WO2020138576A1 (en) Flow-controlled thermal fatigue crack generation apparatus
CN102221437B (en) Pipeline air pressure on-line detector and detection method
CN202330037U (en) Test bench for brake cylinder
CN110456497A (en) A kind of dedicated endoscope of substation equipment maintenance and repair
CN202383214U (en) Hydraulic support detecting device
CN104699079A (en) Detector of temperature and humidity controller
CN105510021B (en) Air brake valve class monitor station
CN201203525Y (en) Electric control multifunctional automobile booster pump and test bench of traversing mechanism
CN109655101A (en) A kind of torque rotary speed intelligent observing and controlling system and test method
CN107727317A (en) A kind of front and rear cylinder head testboard and its operating method
CN209471190U (en) BMS plate test fixture
Jia et al. Design and Experimental Investigation for Subsea Control Module Test System
WO2014137121A1 (en) Control and monitoring device for manual valve in semiconductor and display production equipment
CN111028960A (en) Design method of control simulation disc and control simulation disc
CN101550871B (en) An oil mist detector
KR20100095671A (en) The system of pipe ndt robot
CN2784905Y (en) Inspection and repair test device for neutron measurement selector and isolation valve for nuclear power station

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11834559

Country of ref document: EP

Kind code of ref document: A2

ENP Entry into the national phase in:

Ref document number: 2013534799

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11834559

Country of ref document: EP

Kind code of ref document: A2